Updated on 2026-08-14

features/send-v2/api/src/main/java/com/tangem/features/send/v2/api/SendNotificationsComponent.kt

@@ -31,6 +31,7 @@ interface SendNotificationsComponent {
         val feeCryptoCurrencyStatus: CryptoCurrencyStatus,
         val appCurrency: AppCurrency,
         val notificationData: NotificationData,
+        val callback: ModelCallback,
     ) {
         data class NotificationData(
             val destinationAddress: String,
@@ -44,4 +45,14 @@ interface SendNotificationsComponent {
     }
 
     interface Factory : ComponentFactory<Params, SendNotificationsComponent>
+
+    interface ModelCallback {
+        fun onFeeReload()
+
+        fun onAmountReduceTo(reduceTo: BigDecimal) {}
+
+        fun onAmountReduceBy(reduceBy: BigDecimal, reduceByDiff: BigDecimal) {}
+
+        fun onAmountIgnore() {}
+    }
 }

features/send-v2/api/src/main/java/com/tangem/features/send/v2/api/feeselector/FeeSelectorReload.kt

@@ -1,13 +0,0 @@
-package com.tangem.features.send.v2.api.feeselector
-
-import kotlinx.coroutines.flow.Flow
-
-data class FeeSelectorReloadData(val removeSuggestedFee: Boolean = false)
-
-interface FeeSelectorReloadTrigger {
-    suspend fun triggerUpdate(data: FeeSelectorReloadData = FeeSelectorReloadData())
-}
-
-interface FeeSelectorReloadListener {
-    val reloadTriggerFlow: Flow<FeeSelectorReloadData>
-}

features/send-v2/api/src/main/java/com/tangem/features/send/v2/api/subcomponents/feeSelector/FeeSelectorCheckReloadTrigger.kt

@@ -0,0 +1,22 @@
+package com.tangem.features.send.v2.api.subcomponents.feeSelector
+
+import kotlinx.coroutines.flow.Flow
+
+interface FeeSelectorCheckReloadTrigger {
+    /** Trigger return callback with check result */
+    suspend fun callbackCheckResult(isSuccess: Boolean)
+
+    /** Trigger fee check reload */
+    suspend fun triggerCheckUpdate()
+}
+
+interface FeeSelectorCheckReloadListener {
+    /**
+     * Flow triggers fee check reload before transaction.
+     * Usually after significant time after fee was updated last time
+     */
+    val checkReloadTriggerFlow: Flow<Unit>
+
+    /** Flow return result of fee check update */
+    val checkReloadResultFlow: Flow<Boolean>
+}

features/send-v2/api/src/main/java/com/tangem/features/send/v2/api/subcomponents/feeSelector/FeeSelectorReloadTrigger.kt

@@ -0,0 +1,15 @@
+package com.tangem.features.send.v2.api.subcomponents.feeSelector
+
+import com.tangem.features.send.v2.api.subcomponents.feeSelector.entity.FeeSelectorData
+import kotlinx.coroutines.flow.Flow
+
+interface FeeSelectorReloadTrigger {
+
+    /** Trigger fee update */
+    suspend fun triggerUpdate(feeData: FeeSelectorData = FeeSelectorData())
+}
+
+interface FeeSelectorReloadListener {
+    /** Flow triggers fee reload */
+    val reloadTriggerFlow: Flow<FeeSelectorData>
+}

features/send-v2/api/src/main/java/com/tangem/features/send/v2/api/subcomponents/feeSelector/entity/FeeSelectorData.kt

@@ -0,0 +1,5 @@
+package com.tangem.features.send.v2.api.subcomponents.feeSelector.entity
+
+data class FeeSelectorData(
+    val removeSuggestedFee: Boolean = false,
+)